the obama administration also was hoping the supreme court would endorse a blanket rule, that would have allowed the tests without any kind of a warrant. we'll keep you updated. jenna: breaking information on the boston bombing investigation. what the fbi releasing this photo showing the mangled remains of the alleged pressure cooker lid used in the bomb. apparently it can be packed with nails and ball bearings in an effort to inflict the most damage on its victims. when all pressure builds up it can force out some of these items at some 200 miles per hour. joining us now, kevin berry, retired detective first grade bomb squad and former nypd. and he worked on the first world trade center bombing and the nine 11 attacks. we have seen the video of these parts and. what is the biggest tell for you? what gives you the most information? >> i think the pressure cooker is going to be the item that is going to break the case. if it was purchased recently they will be able to track that. not too many people today have pressure cookers. it is something that was used by our parents and our grand pa